JP2019098002A - Absorbent article - Google Patents

Abstract

To provide an absorbent article comprising an attachment member suitable for attachment work.SOLUTION: An absorbent article in one embodiment of the invention comprises: a main body; and a pair of attachment members. The main body comprises: a crotch part arranged on a crotch; and a ventral part and a back side part each of which is arranged on each of both end parts of the crotch part in a cross direction through the crotch part, and comprises an absorbent core and an external body holding the absorbent core. The pair of attachment members are formed of a substrate and an attachment material arranged on the substrate, and each attachment member extends from each of both side edge parts in a width direction orthogonal to the cross direction of the back side part of the main body, and fixed to each of both side edge parts. The attachment members comprise: a fixing end fixed to the back side part; a knob part facing the fixing end in the width direction sandwiching the attachment member; and a plurality indentation parts positioned over a boundary of the attachment material and knob part, the boundary extending in the cross direction, and being arranged in a non-continuous state along the boundary.SELECTED DRAWING: Figure 3

Description

  The present invention relates to absorbent articles such as disposable diapers, and more particularly to a deployable absorbent article provided with a hook-and-loop fastener.

As a typical form of a development type diaper as an absorptive article, what has an absorptive main part provided with an absorptive core and an exterior body, and a stop wearing member is mentioned. The absorbent body has a ventral side disposed on the ventral side of the wearer, a dorsal portion disposed on the dorsal side, and a crotch portion located therebetween. Retaining members are provided on the side edges of the dorsal side of the absorbent body. The fastening member is provided with a hook-and-loop fastener, and the diaper is worn by fastening the hook-and-loop fastener to the outer surface of the ventral side (see, for example, Patent Document 1).
The side end of the fastening member is a knob formed only of the base sheet on which the surface fastener is not provided. When making a wearer wear a diaper, a worker squeezes a pinching portion with a finger and performs fastening work.

Unexamined-Japanese-Patent No. 2017-51281

  When putting on a diaper, when a wearer moves, a knob part may be broken and a knob part may stick to a hook-and-loop fastener. In such a case, a work of peeling off the stuck portion may occur, and the fastening work may not be performed smoothly.

  The subject of the present invention relates to an absorbent article provided with a fastening member suitable for fastening work.

An absorbent article according to an aspect of the present invention comprises a main body and a pair of fastening members.
The body has a crotch, and ventral and dorsal portions respectively disposed on both sides of the crotch in the front-rear direction.
The pair of fastening members includes a base material and a fastening material disposed on the base material, and extends from both side edges in the width direction orthogonal to the front and rear direction of the back side of the main body. , Fixed to the both side edge portions.
The fastening member includes a fixed end fixed to the back side, a knob facing the fixed end and the width direction with the fastening member interposed therebetween, the fastening member extending in the front-rear direction, and the fastening member. It has a plurality of indentations located across the boundary with the knob and arranged discontinuously along the boundary.

  As described above, according to the present invention, the fastening work of the fastening member can be smoothly performed.

The disposable diaper which concerns on one Embodiment of the absorbent article of this invention is a schematic plan view of the inner side which shows the unfolded state which extended | stretched the diaper main body and planarized it. It is a typical sectional view cut by the II-II line of FIG. It is an enlarged plan view of a fastening tape which constitutes a part of the above-mentioned disposable diaper. It is a figure explaining each bending position of the above-mentioned fastening tape and a fastening tape as a reference example. It is a figure for demonstrating the easy-to-pick area | region of the knob part of each of the said fastening tape and the fastening tape as another reference example. It is an enlarged plan view of a fastening tape, and is a figure explaining the shape of the extension direction tip part of the knob part as a modification. It is an enlarged plan view of a fastening tape, and is a figure explaining the shape of the impression part as a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Whole composition of disposable diapers]
FIG. 1: is a top view which shows the unfolded state of the disposable diaper 1 which concerns on one Embodiment of this invention. The disposable diaper 1 shown in FIG. 1 is in a state in which the diaper body 10 as the absorbent article body (body) is extended along the XY plane. In FIG. 1, the X-axis direction corresponds to the front-rear direction, and the Y-axis direction corresponds to the width direction. Disposable diaper 1 is an absorbent article for catching without leaking the wastes of the baby who is a wearer.
FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG.

  As shown to each figure, the disposable diaper (it is only hereafter called a diaper) 1 is equipped with the diaper main body 10 and the fastening tape 40 as a pair of fastening members. The diaper 1 is a so-called spreadable panel type disposable diaper.

  Hereinafter, the "inside" in each structure means the side directed to the wearer's skin when the diaper is worn, and the "outside" means the side directed to the side opposite to the wearer's skin. Moreover, "at the time of wear" means the state in which the normal proper wearing position, ie, the correct wearing position of the absorbent article, was maintained.

The diaper body 10 has a crotch 10M, a ventral side 10F, and a dorsal side 10R.
The crotch portion 10M is disposed between the crotch of the wearer at the time of wear, the ventral side 10F is disposed on the ventral side of the wearer, and the dorsal side 10R is disposed on the dorsal side of the wearer. The ventral side 10F and the dorsal side 10R are respectively disposed on both sides in the front-rear direction (X-axis direction) of the crotch portion 10M via the crotch portion 10M. Here, the end side of the diaper body 10 located on the belly side of the wearer when worn corresponds to the front side, and the end side of the diaper body 10 located on the back side of the wearer corresponds to the rear side.
The ventral side portion 10F, the crotch portion 10M and the back side portion 10R correspond to respective regions when the diaper 1 is divided into approximately three equal parts in the front-rear direction (X-axis direction).

The diaper body 10 has an absorbent body 20 and a side panel 30.
The absorbent main body 20 includes an absorbent body 15, a top sheet 16, a back sheet 17, and a side sheet 19. The top sheet 16 is a liquid-permeable sheet and is disposed inside the absorber 15. The back sheet 17 is a liquid impermeable or water repellent sheet, and is disposed outside the absorber 15. The back sheet 17 constitutes the exterior of the diaper 1 in a worn state.
The side sheets 19 are respectively disposed on the left and right sides along the front-rear direction on the surface sheet 16 side of the absorbent main body 20.

  The absorber 15 is disposed between the top sheet 16 and the back sheet 17, and is held by the top sheet 16 and the back sheet 17. The absorber 15 captures excrement and is configured to be able to absorb the liquid contained in the excrement. The absorber 15 is formed in a band shape long in the front-rear direction, and is disposed in a wide range from the ventral side 10F to the dorsal side 10R through the crotch portion 10M.

  The absorbent body 15 is configured to include a liquid-retaining absorbent core 151 and a core wrap sheet 152 covering the absorbent core 151. The absorbent core 151 has an elongated shape in the front-rear direction, and extends substantially from the ventral side 10F to the dorsal side 10R through the crotch portion 10M. As the absorbent core 151, a core-forming material containing an absorbent material is piled up, and a material that is usually used as a material of this type can be used without particular limitation. The core wrap sheet 152 covers the entire absorbent core 151.

  The top sheet 16 and the back sheet 17 each have a size larger than that of the absorber 15, and extend outward in the width direction from the periphery of the absorber 15, and the extension portions thereof are bonded to each other by the adhesive 62. It is done. Besides the adhesive, known bonding means such as heat sealing and ultrasonic sealing may be used.

  As the top sheet 16 and the back sheet 17, various types of materials conventionally used in this type of absorbent article can be used without particular limitation. For example, various non-woven fabrics, apertured films and the like can be used as the surface sheet 16. A resin film, a laminate of a resin film and a non-woven fabric, or the like can be used as the back sheet 17. The back sheet 17 has, for example, a form of a liquid-impermeable film sheet alone and a form in which an exterior sheet is laminated and arranged on the outside of the film sheet. The exterior sheet is, for example, a non-woven fabric.

  The side sheet 19 has an inner edge extending in the front-rear direction and an outer edge located outward in the width direction than the inner edge and extending in the front-rear direction. The inner edge of the side sheet 19 overlaps the absorber 15 and is bonded to the top sheet 16 via the adhesive 61. The outer edge of the side sheet 19 extends outward in the width direction from the side edge along the front-rear direction of the absorbent body 15, and forms the side edge 18 in the width direction of the diaper main body 10 including the back side 10R. . The side sheet 19 and the back sheet 17 are joined to the side panel 30 via the adhesive 63 in the width direction of the absorber 15.

  As shown in FIG. 1, in each of the pair of side sheets 19, a thread-like elastic member 12 is disposed in an extended state so as to extend in the front-rear direction through the crotch portion 10M. The side sheet 19 in the crotch portion 10M is a portion functioning as a so-called leg portion disposed around the leg of the wearer when the diaper 1 is worn, and the leg portion is an elastic member when the diaper 1 is worn by this configuration. A contraction of 12 forms a pair of leg gathers.

  The side panels 30 are provided to extend outward in the width direction from the side edges 18 in the width direction of the absorbent main body 20. One end of the side panel 30 is joined as a fixed end 31 to the absorbent main body 20 (the top sheet 16 and the back sheet 17) via an adhesive 63.

  The side panel 30 is formed of an elastic sheet having stretchability in the width direction of the absorbent main body 20. In the present embodiment, the side panel 30 includes two flat rectangular panel members 34 and a plurality of linear elastic members 35 disposed between the two panel members 34.

  The plurality of elastic members 35 are arranged at predetermined intervals in the front-rear direction at the central portion in the width direction of the side panel 30. Each elastic member 35 is joined between the two panel members 34 in an extended state. The arrangement portion of the elastic member 35 in the side panel 30 is an expansion and contraction portion which can expand and contract in the width direction which is the expansion direction of the elastic member 35, and the side panel 30 has elasticity in the width direction by the expansion and contraction portion. .

  As the panel material 34 of the side panel 30, for example, non-woven fabric, woven fabric, knitted fabric, paper, resin film, etc. by various manufacturing methods such as air through non-woven fabric, heat roll non-woven fabric, spun lace non-woven fabric, spun bond non-woven fabric And sheet materials obtained by laminating and integrating two or more of them can be used.

  The side panel 30, the absorbent main body 20, and the fastening tape 40 are respectively formed of separate members.

[Detailed configuration of fastening tape]
Next, the detailed configuration of the fastening tape 40 will be described in detail using FIGS. 2 and 3. FIG. 3 is an enlarged plan view of the fastening tape 40.

  The fastening tape 40 is fixed to the end portion 32 of the side panel 30 so as to extend outward in the width direction from the end portion 32 of the side panel 30. The fastening tape 40 has a substantially rectangular shape whose longitudinal direction is along the width direction. The fastening tape 40 has a fixed end 41 and a free end 42. The fixed end 41 of the fastening tape 40 is fixed to the diaper body 10. Specifically, the fixed end 41 is fixed by an adhesive 64 to the outer surface of the tip portion 32 of the side panel 30 which constitutes a part of the diaper body 10. Well-known joining means other than an adhesive may be used.

  The fastening tape 40 is configured to include a tape base 44 and a hook and loop fastener 45 which is a fastening material. Furthermore, the fastening tape 40 has a plurality of indentations 46. The tape substrate 44 has a substantially rectangular shape elongated in the width direction (Y-axis direction) in plan view as shown in FIG. 3, and the outer shape of the fastening tape 40 matches the outer shape of the tape substrate 44.

  A hook and loop fastener 45 is joined to the inner surface of the tape substrate 44. The hook-and-loop fastener 45 has a flat rectangular shape, and is disposed in the widthwise center of the tape base 44 across the tape base 44 in the front-rear direction. That is, the hook-and-loop fastener 45 is disposed spaced from the fixed end 41 and the free end 42 of the tape substrate 44, respectively. At the free end 42 of the fastening tape 40, the hook and loop fastener 45 is not located, and the free end 42 is constituted by a part of the tape substrate 44. The free end 42 forms a knob 47 which can be pinched by the operator when fastening. The knob portion 47 faces the fixed end 41 of the fastening tape 40 in the width direction with the surface fastener 45 interposed therebetween.

  The fastening tape 40 is configured to be attachable to the outside (non-skin facing surface) of the ventral side 10F of the diaper body 10 when worn. The fastening tape 40 is fastened to the outside of the ventral side 10F to form a pants-shaped diaper 1 having a waist opening and a leg opening.

  As the tape base material 44 which comprises the fastening tape 40, the laminated body etc. of the nonwoven fabric which has a softness | flexibility, a nonwoven fabric, and a resin film can be used, for example. In the present embodiment, a non-stretchable non-woven fabric having flexibility is used as the tape substrate 44.

  The hook-and-loop fastener 45 has a hook portion that constitutes a male member of the mechanical hook-and-loop fastener. On the other hand, on the outer side (non-skin facing surface) of the ventral side 10F, an attachment area 11 (see FIG. 1) constituting a female member of the mechanical surface fastener is formed. The fastening area 11 can detachably fasten the surface fastener 45 of the fastening tape 40.

  The hook-and-loop fastener 45 is bonded to the tape base 44 by an adhesive or the like. As shown in FIG. 3, the fastening tape 40 has a plurality of indentations 46 at boundaries 48 extending in the front-rear direction between the surface fasteners 45 and the knobs 47. The indentations 46 are formed by pressure treatment such as embossing using an embossed convex roll and a flat roll, heat sealing, ultrasonic sealing, or the like. The indentations 46 formed by the treatment are harder and stiffer than the regions not treated.

  A plurality of indentations 46, four in this embodiment, are provided. Each of the plurality of indentations 46 is located across the boundary 48. The plurality of indentations 46 are arranged at equal intervals along the boundary 48 and discontinuously without being continuous with one another. In the present embodiment, the plurality of indentations 46 have an elliptical shape congruent with each other, and the minor axis of the ellipse of each indentation 46 is located on the boundary 48.

  The tip of the free end 42 forming the knob 47 has a corrugated shape. The corrugated shape has a shape in which the convex portion 421 in the extending direction and the concave portion 422 toward the fixed end 41 are alternately arranged, and the outline of the convex portion 421 and the concave portion 422 is curved.

  The indentations 46 are positioned to face the recess 422 along the width direction (Y-axis direction). A non-indented area 49 between two adjacent indentations 46 is positioned to face the projection 421 along the width direction.

  The center-to-center distance of the convex portions 421 adjacent in the front-rear direction (X-axis direction) is set to be the same as the center-to-center distance between the adjacent indentations 46 on the boundary 48. In the elliptical indentation 46, one semi-elliptical portion, which is divided into two at the minor axis, is located on the surface fastener 45, and the other semi-elliptical portion is located at the knob 47 where the surface fastener 45 is not disposed. .

As shown in FIG. 3, in the present embodiment, the length a of the fastening tape 40 in the front-rear direction (X-axis direction) is, for example, 35 mm.
The length b of the indentation 46 in the front-rear direction is, for example, 3.5 mm. In the present embodiment, the length in the front-rear direction of the indentations 46 corresponds to the length of the minor axis of the oval indentations 46.

The length c in the width direction of the indentation 46 is, for example, 7 mm. In the present embodiment, the length in the width direction of the indentation 46 corresponds to the length of the major axis of the indentation 46.
The center-to-center distance d of the adjacent indentations 46 located on the boundary 48 is, for example, 8.75 mm.

  The length e in the width direction of the knob portion 47 is preferably 7 mm or more and 30 mm or less, and is 10 mm in the present embodiment. The length in the width direction of the knob 47 corresponds to the distance between the outermost end 423 of the tip of the knob 47 and the boundary 48.

  The length f in the width direction of the indentation 46 located at the knob 47 is, for example, 3.5 mm. In the present embodiment, the length in the width direction of the indentation 46 located at the knob 47 corresponds to the major radius f of the semielliptic part of the indentation 46 located at the knob 47.

  In addition, the dimension of each structure which comprises the fastening tape 40 shown here is only an example, and of course is not limited to these. For example, since the size of the diaper changes depending on the age of the wearer, the dimensions of the base tape and the surface fastener 45 constituting the fastening tape 40 are appropriately set according to the size of the diaper. Further, in accordance with this, the size, the number, and the position of the indentations 46 are appropriately set.

  In the present embodiment, the indentations 46 are arranged such that the sum of the lengths of the plurality of indentations 46 on the boundary 48 in the front-rear direction is, for example, 40% of the length of the boundary 48. Ru. In addition, the indentation 46 is arranged such that the length in the width direction of the indentation 46 located in the knob 47 is, for example, 35% of the length in the width direction of the knob 47.

  An imaginary line 50 connecting the side portion 461 closer to the tip of the knob 47 among the side portions in the width direction of each indentation 46 is closer to the tip of the knob 47 than the boundary 48. In the present embodiment, of the side portions in the width direction of each indentation 46, the side portion closer to the tip of the pinching portion 47 is the pinching portion 47 at two points where the major axis of the ellipse crosses the peripheral edge of the ellipse. Corresponds to the point near the tip of the

[Operation and effect of this embodiment]
FIG. 4 is a view for explaining bending positions of the fastening tape and the fastening tape as a reference example in the present embodiment.
FIG. 4A is a plan view of an essential part of the fastening tape 40 in the present embodiment having the indentations 46.
FIG. 4B is a plan view of relevant parts of a fastening tape 140 as a reference example in which the indentations 46 are not provided.

In the fastening tape 140 in which the indentations 46 shown in FIG. 4B are not provided, the rigidity differs between the area where the surface fasteners 45 are provided and the area of the knobs 47 where the surface fasteners 45 are not provided. The boundary 48 of the area is linear.
For this reason, in the fastening tape 140 of the reference example, when the knob 47 is broken to the surface fastener 45 side, the knob 47 is easily broken starting from the boundary 48.

  On the other hand, in the present embodiment, the plurality of indentations 46 are disposed across the boundary 48 between the surface fastener 45 and the knob 47. In the fastening tape 40, the area in which the indentations 46 are provided is higher in rigidity than the area in which the indentations 46 are not provided.

  Thus, by providing the plurality of indentations 46 along the boundary 48 across the boundary 48, when the knob 47 is broken toward the surface fastener 45, the knob 47 is unlikely to be broken starting from the boundary 48. Instead, it becomes easy to be broken starting from the virtual line 50 closer to the tip of the knob 47 than the boundary line.

  When the knob 47 is broken starting from the imaginary line 50, the tip of the knob 47 is located farther from the surface fastener 45 than in the case where it is broken from the boundary 48. As a result, the knob portion 47 and the surface fastener 45 do not engage with each other, or the engagement area can be reduced, and sticking of the knob portion 47 to the surface fastener 45 can be prevented or reduced. Thereby, the fastening work can be smoothly performed, and the usability of the diaper 1 is improved.

Furthermore, in the present embodiment, the plurality of indentations 46 are disposed apart from each other along the boundary 48, that is, disposed discontinuously.
Since the indentations 46 are harder than the non-indentation treated areas (non-indentation areas), the plurality of indentations 46 are disposed discontinuously, so that the boundaries 48 of the fastening tape 40 do not become too hard. A soft feeling fastening tape 40 can be obtained, and the touch can be made better. Thereby, even if the fastening tape 40 touches the wearer's skin, the wearer is less likely to feel discomfort.

  In addition, since the indentations 46 are disposed discontinuously, the area where the hook material is killed by the indentations 46 on the surface fastener 45 is reduced as compared with the case where the indentations 46 are disposed continuously, which is desired. A stable fastening function can be secured.

  As described above, in the present embodiment, it is possible to obtain a user-friendly fastening tape 40 in which the softness is maintained and the sticking to the surface fastener 45 due to the bending of the knob portion 47 is reduced.

  Further, in the present embodiment, the tip end of the knob portion 47 has a convex portion 421 and a concave portion 422. As a result, the finger can be easily caught at the uneven portion, so that it is easy to pick the picking portion 47, the fastening operation can be smoothly performed, and the usability of the diaper 1 is improved.

FIG. 5 is a view for explaining the state of the pinching portion 47 of each of the fastening tape and the fastening tape as a reference example in the present embodiment.
FIG. 5A is a plan view of the main part of the fastening tape 40 in the present embodiment.
FIG. 5B is a plan view of an essential part of a fastening tape 40 as a reference example, in which the arrangement positions of the fastening tape and the indentations 46 in this embodiment are different.
In each drawing, a region surrounded by a dotted circle is a region that can be a region 471 that is easier to pick.

In the present embodiment, the tip end of the knob portion 47 has a concavo-convex shape, and the concave portion 422 constituting the concavo-convex shape is positioned to face the indentation 46 in the width direction.
Here, in the knob portion 47, the rigidity is different between the region where the process for forming the indentation 46 is performed and the non-indentation region 49 where the process is not performed. An area 471 that is less rigid and soft and is not processed tends to be an area 471 that is easier for the operator to pick.

  Therefore, as shown in FIG. 5A, the non-indented region 49 between two adjacent indentations 46 is in the width direction by facing the indentations 46 along the width direction. , And the region 471 where the operator can easily pick up can be widely secured in the knob portion 47.

  On the other hand, in the reference example shown in FIG. 5B, the convex portion 421 at the tip of the knob portion 47 is positioned to face the indentation 46 along the width direction. In such an arrangement pattern, a region surrounded by a dotted circle is likely to be the easy-to-pick region 471. As shown in FIGS. 5 (A) and 5 (B), the area 471 where the easy-to-pick is easy is wider when the recess 422 is positioned opposite to the indentation 46 along the width direction.

  As described above, the recessed portion 422 at the tip end of the knob portion 47 is positioned opposite to the indentation portion 46 in the width direction, so that it is possible to secure a wide area 471 that is easy to pinch.

  Further, in the present embodiment, a flexible non-woven fabric is used as the tape base 44 of the fastening tape 40, and the fastening tape 40 having a soft touch can be obtained. Thereby, even if the fastening tape 40 directly touches the skin of the wearer, the wearer does not easily feel discomfort.

  Furthermore, in the present embodiment, a non-stretchable nonwoven fabric is used as the tape base 44 of the fastening tape 40. As a result, the stretching force of the tape base material 44 does not act on the surface fastener 45, so that the stretching force acts on the surface fastener 45 so that the surface fastener 45 receives the tape base material 44. There is no risk that the adhesive strength can not be maintained. Therefore, the adhesive strength between the surface fastener 45 and the tape base 44 can be maintained, and the diaper 1 can have stable quality.

  Further, in the present embodiment, the indentations 46 are arranged such that the sum of the lengths in the front-rear direction of the plurality of indentations 46 on the boundary 48 is 40% of the length of the boundary 48. . As a result, while maintaining the softness of the fastening tape 40, the starting point when broken is likely to be on the imaginary line 50, and the sticking of the knob 47 to the surface fastener 45 can be reduced.

The indentations 46 are preferably arranged such that the sum of the lengths of the plurality of indentations 46 in the front-rear direction on the boundary 48 is a ratio of 15% to 50% of the length of the boundary 48.
By setting it as 15% or more, the starting point at the time of folding can be made closer to the tip of the pinching portion 47 than the boundary 48 rather than the boundary 48. Thereby, the sticking of the knob 47 to the surface fastener 45 can be reduced.
By setting the content to 50% or less, the fastening tape 40 does not become too hard, and soft texture can be maintained.

  In the present embodiment, the indentation 46 is arranged such that the length in the width direction of the indentation 46 located in the knob 47 is 35% of the length in the width direction of the knob 47. Ru. This makes it possible to secure an easy-to-pick area in the picking unit 47 so that the picking operation by the operator can be performed more smoothly.

  The indentation 46 is preferably arranged such that the length in the width direction of the indentation 46 located in the knob 47 is 40% or less of the length in the width direction of the knob 47. This makes it possible to secure an easy-to-pick area in the picking unit 47 so that the picking operation by the operator can be performed more smoothly.

<Modification>
In the above-mentioned embodiment, although the tip of knob part 47 had a wave shape, it is not limited to this. For example, as shown in FIG. 6A, it may be linear.

  Moreover, in the above-mentioned embodiment, the convex part 421 which goes to the extension direction of the knob part 47 and the recessed part 422 which goes to a fixed end were arrange | positioned alternately, and the outline of the recessed part 422 and the convex part 421 was curvilinear shape.

On the other hand, the contours of the concave portion 422 and the convex portion 421 may be rectangular as shown in FIG. 6 (B). Further, the contours of the concave portion 422 and the convex portion 421 may be triangular as shown in FIG. 6C, or may be jagged.
Further, as shown in FIGS. 6D and 6E, the shape of the concave portion 422 and the convex portion 421 may be a curved shape, a rectangular shape, or a shape in which a triangular shape is combined.
Thus, by making the tip of the knob portion 47 uneven, the knob portion 47 can be easily caught on a finger.

  Moreover, in the above-mentioned embodiment, although the shape of the indentation part 46 was elliptical, it is not limited to this. For example, as shown to FIG. 7 (A) and (B), it may be a rectangle, and as shown to FIG. 7 (C), the shape of the indentation part 46 may be a perfect circle.

  Further, as shown in FIGS. 7D, 7 E, and 7 F, the indentations 467 may have an arc shape, and the direction is not limited. By making it circular in this way, in the surface fastener 45, the area of the hook portion killed by the indentation 47 can be narrowed, and the fastening function can be maintained.

  Further, as shown in FIG. 7G, a plurality of different impressions 46 may be arranged.

  Moreover, in the above-mentioned embodiment, although the indentation part 46 was provided only on the boundary 48 of the knob part 47 and the surface fastener 45, in addition to this structure, as shown in FIG.7 (H), it is a fixed end. A plurality of indentations 56 may be disposed discontinuously on the boundary 58 between the surface 41 and the surface fastener 45.

  In any case, a plurality of indentations 46 are disposed along the boundary 48 so as to be spaced apart from each other across the boundary 48 between the knob 47 and the surface fastener 45. In addition, the shape of the indentation part 46 is not limited to what was described here.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited only to the above-mentioned embodiment, Of course in the range which does not deviate from the summary of this invention, a various change can be added.

  For example, in the above-mentioned embodiment, although the diaper main body 10 was comprised by the absorptive main body 10 and the side panel 30 which were each formed by the separate member, the diaper main body which the absorptive main body and the side panel integrated was this The fastening tape of another member may be fixed. In the embodiment in which the absorbent main body and the side panel are integrated, for example, the top sheet and the back sheet cover the absorber and extend to the area of the side panel.

  The absorbent article according to the present invention may not be a disposable diaper for infants, and may be, for example, a disposable diaper for adults or children. Furthermore, the absorbent article according to the present invention may not be a disposable diaper as long as it is an absorbent article of a type worn on the lower body. Examples of such an absorbent article include a spreadable diaper type sanitary napkin and a urine leak pad.

1 ... diapers (disposable diapers, absorbent articles)
10 ... diaper body (body)
10M ... crotch 10 F ... belly side 10 R ... back side 17 ... back sheet (exterior body)
18 ... both side edges of the absorbent main body 30 ... side panel 40 ... fastening tape (stopping member)
41: Fixed end of fastening tape fixed to diaper body 44: Tape base material (base material)
45-Surface fastener (fastening material)
46 ... indentations 47 ... knobs 48 ... boundaries 151 ... absorbent core 421 ... projections 422 ... depressions

Claims (5)

A body having a crotch and ventral sides and a dorsal side respectively disposed on both sides in the front-rear direction of the crotch;
A base material and a fastening material disposed on the base material, extending from both side edges in the width direction orthogonal to the front and rear direction of the back side of the main body, and fixed to the both side edges And a pair of stop wearing members provided,
The pair of fastening members includes a fixed end fixed to the back side, a knob facing the fixed end in the width direction with the fixing member interposed therebetween, and the fixing member extending in the front-rear direction An absorbent article comprising: a plurality of indentations positioned across the boundary between the first and second knobs and arranged discontinuously along the boundary. An absorbent article according to claim 1, wherein
The tip end portion of the knob portion has a shape in which a protrusion toward the extension direction and a recess toward the fixed end are alternately arranged.
The said indentation part is located facing the said recessed part along the said width direction. Absorbent article. The absorbent article according to claim 1 or 2, wherein
The indented portion has a circular or arc shape. Absorbent article. The absorbent article according to any one of claims 1 to 3, wherein
The indented portion is arranged such that the sum of lengths of the plurality of indented portions on the boundary in the front-rear direction is 15% to 50% of the length of the boundary. . The absorbent article according to any one of claims 1 to 4, wherein
The indented portion is arranged such that the length in the width direction of the indented portion located in the knob portion is 40% or less of the length in the width direction of the knob portion. Goods.

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